Steam-trap



(Nolvlodel.)

lJ. E. LONEARGAN 8v A FOGEL.

STEAM TRAP.' No. 455,002. Patented June 30,1891.

-mguonms versus co.. moro-uws., wwimnfon, n. c.

UNITED STATES PATENT OFFICE.

JOHN E. LON ERGAN AND ALEXANDER FOGEL, OFPHILADELPHIA, PENNSYLVANIA.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 455,002, dated June 80,1891. Application filed March 24| 1891. Serial No. 386,225. (No model.)

To all whom it may concern:

Be it known that we, JOHN LONERGAN and ALEXANDER FOGEL, both citizens ofthe United States, and residents of Philadelphia, Pennsylvania, haveinvented certain new and useful Improvements in Steam Traps, of whichthe following isa description, reference being had to the annexeddrawings, making part hereof.

The nature of our invention will fully appear from the following,`specification and claims.

In the drawings, Figure l is a vertical 10ngitudinal sectional view ofour device; Fig. 2, a vertical cross-sectional view on the line l 2 ofFig. l; Fig. 3, an elevation of the yoke and valve-stem and partsectional View of the parts on the line 3 3 of Fig. l; Fig. 4, acrosssectional view on the line et 4 of Figs. 1 and 3.

A is the shell of the trap; B, the inlet; C, an opening-outlet adaptedto receive a trycock or plug; C', the outlet for water when underpressure; C, a cock or valve to permit the escape of steam or air; C, acock or valve to drain the water of condensation from the trap and toblow out sediment.

D is a float set on one end of a tubular bar E, which opens into it, andis provided with pivot D', beyond which pivot this bar is solid, thisportion being lettered E, and supports at its end the weight E. Aremovable screwplug E is set by screw-threads in the end of shell A,which plug can be removed to permit the insertion or taking out ofweight E', the latter being screwed upon the end of the floatbar. PivotD is hollow, its interior space openinginto the interior of tube E byhole D. It is closed at one end D and at the latter end is mounted injournal G. The hollow other end of the pivotis Inountedin the hollow orpierced journal G. This journal is provided with a tube G. (Shown infull side view in Fig. 2, the hollowed pivot D being shown in sectionalview.) Astuiling-box G and its packing is shown, and is here used tomake a close joint between the rocking tube G and the stationaryjournal-bearing G to prevent the escape of steam or water from theinterior space of the trap. The tube E and hollow pivot D permit theescape of water of condensation from sweating or ot' vapors from theinterior of the hollow ioat.

X is an ordinary Water-gage.

A is a swell in the shell A of the trap adapted to receive thetloat asit rises.

I is a hollow cylinder restingupon part A of shell A, rigidly connectedto and practically integral therewith.

A is a curved tube provided with openings C and C', above described, andforming part of the outer shell A of the apparatus.

J is an interior hollow neck-piece engaging by parts J above and Jbelow, respectively, with tubes A and I. The lower edge K of this neckforms a seat for the annular flange K` of the large valve L, whichflange sets up against said seat. This valve is provided with ports L',letting into space L in tube A. Small valve M (see Fig. 3) is set withinlarge valve L, and is provided with ports N, which let int-o the latter,and has'its annular bearing-flan ge N seating u p against the lower faceof valve L. The lower face of small valve M is full. M are notches inthe upper edge of valve M. When both valves are seated, the upward flowof fluids is cut off.

O is a stem depending from small valve M and provided with ascrew-thread O. The female screw-threaded yoke P is set upon the lowerend of this stem, as shown in Figs. 1 and 3. This yoke embraces the barF. at the part E. (See Fig. l.) Tube I is provided with a shelf or restS upon which the spiral spring T sets. This spring impinges aboveagainst the lower face of small valve M, and tends in expanding to throwthe latter upward to its seat against the lower face of valve L, and insequence the latter to its seat against the lower edge K of part J ofneck J.

U is a tubular collar screwed or shrunk around and forming part of smallvalve M to hold this valve from falling from place, but still to permitit to drop sufficiently to open its ports to the space below to allowwater to pass upward to the interior of large valve L.

V (in dotted lines) represents the shell of 'the steam-chamber, the dripor condensation from which the trap is designed to dispose of.

TvV is a bridge spanning the inner space of shell A near the cylinder I.

IOO

Y is the interspaee of shell A.

The operation is as follows: YVhen from any cause the water rises abovethe lower edge of bridge XV, the iioat D will be raised to such a heightas to depress weight E and also depress yoke P and stem O and open smallvalve M, when the steam-pressure in the space Y will drive the surpluswater into valve L through ports N, and if these ports are notsufiicient to carry off the water of rapid condensation float D willcontinue to rise and depress the weight E and part E ol' the pivoted baruntil the collar U strikes the bottom of large valve L and opens ports Lthereof to the space below, when the steampressure in space Y will forcethe surplus water out through tube r and exit C. As the water escapes,float D will fall and spring will expand and drive both valves back totheir seats, thus preventing the escape of steam through their ports andpreserving` a mean water-level in the trap-that is, a level sligh tlyabove the lower edge of bridge V-which level will keep the Valvesclosed. The resultant action of fioatD upon yoke P is regulated byraising or lowering the yoke upon stem O by means of the screw-thread.This is accomplished by removing the plug or try-cock from opening C andby means of a screw-driver or key therein inserted and engaging innotches M', turning the stem @,whieh latter by its screw-thread O willraise or lower the yoke P.

Z is a spring set beneath the float and attached rigidly thereto to actas a cushion to prevent it from being indented by striking the bottom ofthe trap, upon which latter it sets loosely. It will be noted that thepart E ot' the float-bar slants upward and backward from the pivotD, andis then continued horizontally to the weight. The yoke P sets belowagainst the upper end of this slanted portion. Consequently thedepression of part Eof the bar rst causes this slant to act against theyoke to tip its lower portion forward as well as downward, thus gentlystarting the opening of small valve M, and after well starting thevalve, which is thus rendered easy, the horizontal portion of the part Eacts directly with the slanted portion to draw the yoke directly down,the latter being caught in the angle between the horizontal and slantedparts of E".

lVhat we claim 4as new isl. In a steam'trap,the combination of oat D,pivoted bar E E, weight E', bridge lV, stem O, yoke P, double or largeand' small valves L and M, one set within the other and respectivelyprovided with ports L and N, and spring T, all combined and operatingsubstantially as described.

2. In a steam-trap, the combination of float D, pivoted bar E E, weightE', bridge XV, stem O, yoke P, into which the stem is screwed, double orlarge and small valves L and M, one set within the other andrespectivelyprovided with ports L and N, and spring T, the inner valvebeing provided with notches M' and the tube A", provided with opening C,whereby an instrument may be inserted through opening C to turn valve Mand change the distance of yoke P from the latter, all combined andoperating substantially as described.

ln a steam-trap, the combination of float D, bar E L", bridge W, pivotD', and yoke P, the part E ot the bar being slanted upward and backwardfrom the pivot, and then continued about horizontally forward, the yokebeing set below at the angle betweenv the slanted and horizontalportions of part E, substantially as and for the purposes described.

In witness that the above is our invention we have hereunto set ourhands.

JOHN E. LONERGAN. ALEXANDER FOGEL. XVitxiesses:

Geenen E. BUCKLES?, HENRY V. BUCKLEY.

